Sewer cleaning machine



FIG. 1 is a top left front perspective view of a sewer cleaning machine showing the new design;

FIG. 2 is bottom left rear perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a front view thereof; and,

FIG. 8 is a bottom view thereof. 

CLAIM I claim the ornamental design for a sewer cleaning machine, as shown and described. 